diff --git a/requirements.txt b/requirements.txt
index 8f98481..c655064 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ mistune==0.8.3
 mpmath==1.0.0
 nbconvert==5.3.1
 nbformat==4.4.0
-notebook==5.4.1
+notebook==6.4.12
 numpy==1.14.2
 pandocfilters==1.4.2
 parso==0.1.1